Seriously? Factory Mistake?
Seasoned HDF Member
Joined: Jun 2015
Posts: 8,055
Likes: 8,080
From: Canada
Like car engines, they can reuse some cores and they number them for each use then scrap them after so many uses due to core-shift. Clearly a bummer to see but doubt it has any effect of performance.
Seasoned HDF Member
Joined: Apr 2006
Posts: 10,675
Likes: 95
From: Billings,Mt.
I have machined castings before and not all of the machining is centered or even to the casting.
There are datum points to locate off of on the casting.The relation of the machining to the casting can be off.
Last edited by 1flhtk4me; Jun 20, 2017 at 06:44 AM.
Road Warrior
Joined: Aug 2008
Posts: 1,784
Likes: 92
From: Michigan
I guess ask some fellow riders to take note on what their ports look like. If everyone say centered then demand the cylinder be replaced.
I could see this being a problem in time. No excuse for sloppy workmanship, makes you wonder about the rest of the engine.
I could see this being a problem in time. No excuse for sloppy workmanship, makes you wonder about the rest of the engine.
Club Member
Joined: Jun 2016
Posts: 1,531
Likes: 439
From: Texas
Freeze the gasket with a can of compressed air turned upside down really well and the gasket will tap in with no problem.
Club Member
Joined: Oct 2011
Posts: 11,175
Likes: 2,483
From: Nor Cal
Keep those exhaust ports facing away from each...You don't want the bad one to know how good the other's got it.
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Tourer
Joined: Dec 2014
Posts: 268
Likes: 53
From: NE Ohio
What spec are you referring to? To verify a spec I would think I would need to get it on a dyno which I have not done. I have not noticed any obvious performance issues. My concern is the gasket being pushed into the port and not sealing.